The YEP can reveal that inmates with access to PlayStation II consoles have been able to play pornographic DVDs.
Prison chiefs have now banned the machines from the jail after it became clear they were being abused.
Inmates at the jail - which houses child killers Ian Huntley and Roy Whiting - have also had access to pornographic magazines and newspaper cuttings of children.
Wakefield MP Mary Creagh is now calling for a tighter security regime.
A list of property confiscated from prisoners' cells in the past year, obtained under the Freedom of Information Act, also includes a diary containing security information about the prison, mobile phones - including one complete with a battery and charger - and newspaper cuttings on stories about prison staff.
The governor, Dave Thompson, said yesterday that the game consoles had now been banned from the maximum security jail to stop further abuses.
He told the YEP: "There was a time when we allowed access to the PlayStation I and they were later replaced by the PlayStation II machines.
"When it became clear that they could be used to play DVDs which included pornographic material we removed them all."
The governor also said that smuggling of pornographic magazines and newspaper cuttings involving children was a "particular problem" at the prison.
"Prisoners are able to get access to newspapers. But there are things in them that they portray completely different than you or I. It becomes a problem when it is a gratification issue."
Huntley - jailed in 2003 for the murders of 10-year-olds Holly Chapman and Jessica Wells in Soham, Cambridgeshire - is among those who have had material confiscated after magazines were found in his cell.
Mr Thompson said prisoners were allowed access to material such as 'lads' mags' but pornography was banned.
He added: "Mobile phones have also become a particular problem for the prison service. As technology has enabled them to become smaller it is easier for people to get them into the prison undetected."
Ms Creagh said she would be raising security at the jail with the Prisons Minister, Baroness Scotland.
tony.gardner@ypn.co.uk